:root {
  /* Light theme variables */
  --primary-color: #2c3e50;
  --secondary-color: #3498db;
  --accent-color: #e7833c;
  --text-color: #333;
  --light-text: #666;
  --background-light: #f5f6fa;
  --white: #ffffff;
  --card-bg: #ffffff;
  --header-bg: #ffffff;
  --border-color: #ddd;
  --shadow-color: rgba(0, 0, 0, 0.1);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Arial", sans-serif;
  line-height: 1.6;
  color: var(--text-color);
  background-color: var(--background-light);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header & Navigation */
.header {
  background: var(--header-bg);
  box-shadow: 0 2px 5px var(--shadow-color);
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.logo {
  display: flex;
  align-items: center;
}

.logo-image {
  height: 85px;
  width: auto;
  display: block;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 2rem;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-color);
  font-weight: 500;
  transition: all 0.3s ease;
  background: var(--background-light);
  padding: 0.8rem 1.5rem;
  border-radius: 4px;
  display: inline-block;
  border: 1px solid var(--border-color);
}

.nav-links a:hover {
  background: var(--white);
  color: var(--primary-color);
  transform: translateY(-2px);
  border-color: var(--primary-color);
}

.nav-links a.cta-button {
  background: var(--accent-color);
  color: var(--white);
  border: none;
}

.nav-links a.cta-button:hover {
  background: #c0392b;
  color: var(--white);
}

/* Hero Section */
@keyframes gradientAnimation {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

.hero {
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--secondary-color),
    #2980b9,
    #2c3e50
  );
  background-size: 300% 300%;
  animation: gradientAnimation 15s ease infinite;
  color: var(--white);
  padding: 8rem 0 4rem;
  text-align: center;
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: 1.5rem;
}

.hero-text {
  font-size: 1.2rem;
  max-width: 800px;
  margin: 0 auto 2rem;
}

/* Services Section */
.services {
  padding: 4rem 0;
  background: var(--background-light);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.service-card {
  background: var(--card-bg);
  padding: 2rem;
  border-radius: 8px;
  box-shadow: 0 2px 10px var(--shadow-color);
  transition: transform 0.3s ease;
}

.service-card:hover {
  transform: translateY(-5px);
}

/* Expertise Section */
.expertise {
  padding: 4rem 0;
  background: var(--background-light);
}

.expertise-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.expertise-card {
  background: var(--card-bg);
  padding: 2rem;
  border-radius: 8px;
  box-shadow: 0 2px 10px var(--shadow-color);
  transition: transform 0.3s ease;
}

.expertise-card:hover {
  transform: translateY(-5px);
}

.expertise-card h3 {
  margin-bottom: 1rem;
  color: var(--primary-color);
}

.expertise-card p {
  color: var(--text-color);
}

/* Verification Section */
.verification {
  padding: 4rem 0;
  background: var(--background-light);
}

.verification-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.verification-item {
  background: var(--card-bg);
  padding: 2rem;
  border-radius: 8px;
  box-shadow: 0 2px 10px var(--shadow-color);
}

/* Contact Section */
.contact {
  padding: 4rem 0;
}

.contact-form {
  max-width: 600px;
  margin: 2rem auto 0;
  display: grid;
  gap: 1rem;
}

.form-group {
  position: relative;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 0.8rem;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  font-size: 1rem;
  background: var(--card-bg);
  color: var(--text-color);
  transition: border-color 0.3s ease;
}

.contact-form textarea {
  height: 150px;
  resize: vertical;
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: var(--light-text);
}

.form-hint {
  display: none;
  font-size: 0.85rem;
  color: var(--light-text);
  margin-top: 0.25rem;
}

.form-group:hover .form-hint,
.form-group:focus-within .form-hint {
  display: block;
}

.form-message {
  margin-top: 1rem;
  padding: 0.75rem;
  border-radius: 4px;
  font-weight: 500;
  text-align: center;
}

.form-message:empty {
  display: none;
}

.form-message.success {
  background-color: #d4edda;
  color: #155724;
  border: 1px solid #c3e6cb;
}

.form-message.error {
  background-color: #f8d7da;
  color: #721c24;
  border: 1px solid #f5c6cb;
}

.contact-form input:invalid,
.contact-form textarea:invalid {
  border-color: #dc3545;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.2);
}

.contact-form button[type="submit"] {
  background: var(--primary-color);
  color: var(--white);
  padding: 1rem;
  border: none;
  border-radius: 4px;
  font-size: 1rem;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.contact-form button[type="submit"]:hover {
  background: var(--primary-dark);
}

.contact-form button[type="submit"]:disabled {
  background: var(--light-text);
  cursor: not-allowed;
}

.checkbox-container {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  margin: 1rem 0;
}

.checkbox-container input[type="checkbox"] {
  width: auto;
  margin-top: 0.25rem;
}

.checkbox-container label {
  font-size: 0.9rem;
  color: var(--text-color);
  line-height: 1.4;
}

/* Footer */
.footer {
  background: var(--primary-color);
  color: var(--white);
  padding: 4rem 0 2rem;
}

.footer-content {
  display: grid;
  grid-template-columns: 1fr 2fr 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
  align-items: start;
}

.footer-logo-section {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.footer-logo-section p {
  color: var(--white);
  opacity: 0.9;
  font-size: 0.9rem;
}

.footer-logo {
  margin-bottom: 0.5rem;
}

.footer-logo-image {
  height: 80px;
  width: auto;
  filter: brightness(0) invert(1);
}

.footer-info {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  justify-content: flex-start;
  text-align: left;
  margin: 0 auto;
  max-width: 300px;
}

.company-address {
  font-style: normal;
  line-height: 1.6;
  color: var(--white);
  opacity: 0.9;
}

.company-details {
  font-size: 0.9rem;
  color: var(--white);
  opacity: 0.8;
}

.company-details p {
  margin: 0.2rem 0;
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

@media (max-width: 768px) {
  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 3rem;
  }

  .footer-logo-section {
    align-items: center;
  }

  .footer-info {
    text-align: center;
    margin: 0 auto;
  }

  .footer-logo-image {
    height: 60px;
  }

  .company-address,
  .company-details {
    text-align: center;
  }
}

/* Common Elements */
h2 {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 1rem;
  color: var(--primary-color);
}

.cta-button {
  display: inline-block;
  padding: 0.8rem 2rem;
  background: var(--accent-color);
  color: var(--white);
  text-decoration: none;
  border-radius: 4px;
  border: none;
  font-size: 1rem;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.cta-button:hover {
  background: #c0392b;
}

/* Responsive Design */
@media (max-width: 768px) {
  .nav {
    flex-direction: column;
    padding: 1rem;
  }

  .nav-links {
    margin-top: 1rem;
    flex-direction: column;
    text-align: center;
    gap: 0.5rem;
    width: 100%;
  }

  .nav-links a {
    width: 100%;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .hero-text {
    font-size: 1rem;
  }

  .services-grid,
  .verification-grid {
    grid-template-columns: 1fr;
  }

  .footer-logo-image {
    height: 40px;
  }
}

/* Required field indicator */
input:required,
textarea:required,
input[type="checkbox"]:required {
  border-left: 3px solid var(--accent-color);
}

textarea:required {
  padding-left: calc(0.8rem - 1px);
}